import streamlit as st

st.title("Hello Streamlit-er 👋")
st.markdown(
    """ 
    This is a playground for you to try Streamlit and have fun. 

    **There's :rainbow[so much] you can build!**
    
    We prepared a few examples for you to get started. Just 
    click on the buttons above and discover what you can do 
    with Streamlit. 

    中文信息
    """
)

if st.button("Send balloons!"):
    st.balloons()

username = st.text_input("What's your name?", "Streamlit-er")
st.write(f"Hello, {username}!")
password = st.text_input("What's your password?", type="password")
if st.button("Submit"):
    if password == "streamlit":
        st.success("Password is correct!")
    else:
        st.error("Password is incorrect!")    

number = st.number_input("Pick a number", 0, 100, 50)
st.write(f"You picked {number}!")